It's about as powerful as our local power wash (just finished washing my baby). It also depends on your home water pressure, it helps. I luuuuuv it! It peels the dirt right off! I think any more than 1500psi and it will peel the paint. It'll save you the pain of looking for change and line ups at the carwash.
My driveway has a strange runoff and all the mud started to pool on the street pissing off my Benz loving neighbours.
It said on the box...Never point at your face when in use. LOL. I guess it's ok if you have two faces(1 for spare
).